Common Oncidium Pests and Control Methods

There are many insect pests for Oncidium, but the most serious one is scale insect. There are many types of scale insects, and the degree of damage varies in different environments. Let the editor show you about it!

Oncidium pests: Coffee gray scale

This scale insect is small in size and gray or brown in color. It mainly parasitizes on leaves, mostly on the back of the leaves, and feeds on the sap of the plant. When coffee scale infestation is severe, the entire leaf is densely covered with it, which not only consumes the nutrients of the plant, but also causes sooty mold disease due to its excrement, affecting its ornamental value.

Prevention and control methods: Strengthen maintenance, ventilate in time, and rinse with clean water when insects are found. When the disease occurs over a large area, you can spray the pesticide once every 10 days, 1 to 3 times will be enough. The agents that can be selected are omethoate and dichlorvos.

Oncidium pests: White shield scale

This is the most common insect pest of Oncidium. The bug is white with white bumps around it. The insect body is relatively small, 1.5 to 2 mm, and the damage is relatively serious. It mainly occurs in short-plant Oncidium varieties. In severe cases, the leaves will be covered with white, affecting the accumulation of nutrients for photosynthesis.

Prevention and control methods: When a small amount of white shield scale is found, scrape it off with bamboo strips in time, or wash it with laundry detergent. If there are a lot of white bugs, spray the pesticide in time.

Oncidium pests: Oyster scale

The oyster scale is about 2 mm long and yellowish-brown in color. It fixes on the front and back of leaves to absorb juice, making the leaves lose their luster and affecting their growth and ornamental value. Oyster scale appears 2 to 3 times a year, and is more serious in the second half of the year.

Prevention and control methods: maintain ventilation, control watering, keep leaves dry at night; spray pesticides in time, for details, please refer to coffee gray scale.